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Marin County

French Ranch Open Space Preserve

Attractions and Places To See in French Ranch Open Space Preserve - Top 7

Best attractions and places to see in French Ranch Open Space Preserve include diverse natural landscapes and an extensive trail system within its 403 acres. The preserve features forested canyons with Douglas fir, redwood, oak, and tanoak trees, alongside areas of serpentine soil supporting rare plant species. It plays a crucial role in the Lagunitas Creek watershed, providing habitat for endangered coho salmon. French Ranch Open Space Preserve connects with other preserves, expanding options for exploration.

Best attractions and places…

Last updated: May 5, 2026

Roy's Redwoods Open Space Preserve and French Ranch Open Space Preserve

Highlight • Forest

The two Open Space Preserves meet in this valley of stately redwood trees that's refreshingly cool even in summer, which is welcome before or after the climbs that go both directions in and out of this valley.

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Short steep climb from the South, more gradual from the north, to an overlook of the San Geronimo valley.

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293 forested acres overlooking the heart of San Geronimo Valley. Primeval groves of bay and redwood trees are the star attractions here, where scenes in George Lucas' The Ewok Adventure …

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School Trail

Highlight (Segment) • Trail

Get off the highway and help promote safe bikeways in the San Geronimo Valley! School trail is mostly well-compacted gravel, a great alternative to parallel but out of sight and …

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The trail begins at the locked gate here, follows the fire road through French Ranch Open Space Preserve, and continues onward to Barnabe Mountain in Samuel P Taylor State Park. Excellent views all along the ridge.

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Hiking in French Ranch Open Space Preserve

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Traveler
June 16, 2020, Roy's Redwoods Open Space Preserve & French Ranch OSP

The two Open Space Preserves meet in this valley of stately redwood trees that's refreshingly cool even in summer, which is welcome before or after the climbs that go both directions in and out of this valley.

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Short steep climb from the South, more gradual from the north, to an overlook of the San Geronimo valley.

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The trail begins at the locked gate here, follows the fire road through French Ranch Open Space Preserve, and continues onward to Barnabe Mountain in Samuel P Taylor State Park. Excellent views all along the ridge.

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Traveler
April 27, 2020, School Trail

Get off the highway and help promote safe bikeways in the San Geronimo Valley! School trail is mostly well-compacted gravel, a great alternative to parallel but out of sight and danger of busy Sir Francis Drake Boulevard. Currently only this short section between Forest Knolls and Lagunitas School. Great start people, extend the trail !

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293 forested acres overlooking the heart of San Geronimo Valley. Primeval groves of bay and redwood trees are the star attractions here, where scenes in George Lucas' The Ewok Adventure were filmed. For a peaceful getaway, meander down Roy’s Redwoods Loop Trail. It's a secluded ridge with sheltering fir, madrone, and oak trees. Look for "hippie trees." A 60's commune made their homes inside large hollowed-out trunks. https://www.marincountyparks.org/parkspreserves/preserves/roys-redwoods

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Impressive grove of tall redwoods just off the Nicasio Valley Road, and nice hilly tails for future explorations

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Frequently Asked Questions

What are the main natural features to explore in French Ranch Open Space Preserve?

The preserve offers diverse natural landscapes, including forested canyons rich with Douglas fir, redwood, oak, and tanoak trees. You can also find areas with exposed serpentine soil, which supports rare plant species like serpentine reedgrass. The preserve is a crucial part of the Lagunitas Creek watershed, providing important habitat for endangered coho salmon.

Are there family-friendly trails in French Ranch Open Space Preserve?

Yes, the preserve offers several family-friendly options. The Roy's Redwoods Loop Trail, partly within the adjacent Roy's Redwoods Open Space Preserve, is an easy 3.2-mile (5.2 km) path through impressive redwood groves. The School Trail is also noted as family-friendly and offers a well-compacted gravel path.

What kind of trails can I find for hiking or biking?

French Ranch Open Space Preserve features an extensive trail system suitable for hiking, biking, and horseback riding. Trails range from easy to challenging, including fire roads like French Ranch Fire Road and the Barnabe Mountain Fire Road Trail, which offers excellent views. The preserve also connects to other preserves, expanding your trail options.

Where can I find impressive redwood groves?

You can find impressive redwood groves where Roy's Redwoods Open Space Preserve and French Ranch Open Space Preserve meet. This area features stately redwood trees, some over 300 years old and nearly 300 feet tall. The Roy's Redwoods Loop Trail specifically leads through these primeval groves.

Are there any scenic viewpoints in the preserve?

Yes, the preserve offers several scenic viewpoints. The Moon Hill Summit - Nicasio Valley Road provides an overlook of the San Geronimo valley. Additionally, ridges within the preserve offer expansive views of the surrounding valleys, and the Barnabe Mountain Fire Road Trail is known for its excellent views along the ridge.

What outdoor activities are available near the attractions?

Beyond exploring the attractions, you can enjoy various outdoor activities. For gravel biking, explore routes like the Marie Dhority Bridge – Cross Marin Trail loop. Road cycling enthusiasts can try the Hicks Valley Road Loop. There are also waterfall hikes available, such as the Stairstep Falls Trail. You can find more details on these activities in the respective guides for gravel biking, road cycling, and waterfall hikes in French Ranch Open Space Preserve.

What is the best time of year to visit French Ranch Open Space Preserve?

The preserve is generally enjoyable year-round. The redwood groves, particularly around Roy's Redwoods Open Space Preserve and French Ranch Open Space Preserve, remain refreshingly cool even in summer, making it a pleasant escape from warmer temperatures. Spring and fall offer mild weather, ideal for hiking and exploring the diverse flora.

What makes French Ranch Open Space Preserve unique?

French Ranch Open Space Preserve is unique for its ecological restoration, as it was once a golf course that nature has since reclaimed. It's also notable for its role in the Lagunitas Creek watershed, supporting endangered coho salmon, and its interconnectedness with other preserves like Roy's Redwoods, Maurice Thorner, and Gary Giacomini, offering an expanded network of trails.

What wildlife might I encounter in the preserve?

While specific wildlife sightings vary, the preserve's diverse habitats, including forested canyons and its role in the Lagunitas Creek watershed, support a variety of species. Keep an eye out for birds, small mammals, and potentially deer. The watershed is particularly important for endangered coho salmon.

Are there options for more challenging hikes?

Yes, the preserve offers trails with varying difficulty levels. The San Geronimo Ridge Loop, for instance, is a moderate 5.6-mile (9.0 km) path that provides scenic views and traverses varied terrain. The Moon Hill Summit - Nicasio Valley Road can be reached via a short, steep climb from the south, offering a more strenuous ascent.

What do visitors enjoy most about French Ranch Open Space Preserve?

Visitors particularly appreciate the refreshing coolness of the redwood groves, especially in summer, as noted for Roy's Redwoods Open Space Preserve and French Ranch Open Space Preserve. The impressive, tall redwoods and the scenic views from various points like Moon Hill Summit are also highly valued.

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